Home / 6,981.04-10,471.65-1,786.90

Finding the Fourth Proportional to 6,981.04, 10,471.65 and 1,786.90

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Solution

The fourth proportional to 6,981.04, 10,471.65 and 1,786.90 is: 2,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.04 : 10,471.65 = 1,786.90 : x
  2. Step 2: Convert to fraction form
    6,981.04/10,471.65 = 1,786.90/x
  3. Step 3: Cross multiply
    6,981.04x = 10,471.65 × 1,786.90
  4. Step 4: Simplify right side
    6,981.04x = 18,711,791.39
  5. Step 5: Solve for x
    x = 18,711,791.39/6,981.04
  6. Step 6: Final answer
    x = 2,680.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.